Hydrant



Unire GEORGE M. sELnEN, or' TROY, New YORK.

HYDRANT.

' To all whom it may concern:

Be it known that I, GEORGE M. SELDEN,

' Fig. l, and Fig. 3 represents a section showing the operation of thevalves.

In the drawings, A represents the base of the hydrant which is generallycast with a short inlet knee or pipe F.

B represents the top of the hydrant and is cast with an outlet pipe orconductor C. rIhe bottom of B screws into the top of A, as seen at i,Fig. 3, and has fastened to its lower end a narrow cross piece B is alsoprovided with an internal rod or spindle J to the lower end of which isfastened a valve I, while its upper end extends up through a hole in thetop of B, and is provided with a screw thread, upon which is screwed theconnection piece D, after a suitable packing a, has been slipped on.

Before the part B is screwed into A, aV

valve seat piece c is screwed down upon a packing ring f, the spindleGr, with its valve H, having been previously placed in position as shownin Fig. 3.

C is provided with an internal screw thread for the reception of thedelivering pipe, while the outer end of F is provided with an externalthread for the reception of the usual connections E, or theseconnections may be made by soldering or otherwise.

c is an extension to allow of a support to the lower end of spindle G.

b l are ear pieces Yby which to fasten the hydrant in any well knownmanner.

in dark lines Fig. 3, whereby the water is allowed to flow through pipeF, as indicated by arrows at F', thence up through A, and out at @,-thepacking a, being pressed against the top of B, preventing any waterpassing up and out of the side of spindle J, where it passes through thetop of B. rThe arrangement should be such as to enable the operator tofasten down the rod by which spindle J and valve I, are operated.

Then it is desired to shut the water off, the fastening which holdsspindle J, down is to be removed, when the force of the water againstthe bottom of-valve I, forces it up against its seat h, therebypreventing all further flow of water; while the water then in the outletpipe connected with C, flows back and out under packing a, (which isalways raised when valve I, is closed) as shown by red arrows Fig. 3. Itwill thus be seen that the operation of my hydrant is almostself-acting, and that it-s simplicity is such that it is not ,liable tobe displaced by unskilful operators. Y

Then it is necessary to repair any of the' pipes or valves above A, thewater does not have to be shut off from the main pipe, since by simplyunscrewing B, spindle Gr, and valve H, rise up by the action of thewater until valve II, strikes against valve seat e, when the water isprevented from flowing, and the part B, together with valve I, and pipeC, can all be removed for repairs.

When the part B. is screwed in again, as soon as the narrow piece g,which extends across its bottom, strikes the upper end of spindle G,which projects above valve H, as seen in the drawings, spindle G, withits valve I-I, are forced down, whereby the water is again allowed toflow freely up into B, as indicated in Fig. 3. By this arrangement, allnecessity lof digging down 4in. the streets or under pavements in orderto shut oil the water, when it is necessary to'repair any of the partsabove it is avoided.

By the use of a box to prevent dirt from falling into the end of A, B,can be unscrewed and taken up, although many feet under ground, repairedand then put down and screwed into A#L -the operation being conducted bythe most simple device. For instance by running do'v'vn 'il piece 'ofboard bevalve seat e, and sections A, substantially tween the end of C,and D, and then turnas set forth. l0 ing it, B can be unscrevved withease. In Witness whereof I have hereunto sub- Havng described myinvention What I scribed my name. claim and desire to secure by LettersPat- GEORGE M. SELDEN. ent7 is: In presence of- The combination of theindependent valves GEO. GOULD,

H, and I, with cross piece g,removab1e serevv lF. H. JOHNSON.

